This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A187896 #5 Mar 30 2012 18:57:19 %S A187896 3,6,11,15,19,22,26,29,34,36,39,44,48,51,56,58,64,67,69,75,77,83,85, %T A187896 88,92,96,101,104,110,112,115,119,124,127,129,134,137,142,146,149,151, %U A187896 157,161,165,167,170,174,179,182,187,191,195,198,200,203,208,214,216,220,222,225,230,236,238,244,247,249,254 %N A187896 Complement of A187895. %C A187896 See A187224. %t A187896 (See A187895.) %Y A187896 Cf. A187224, A187895. %K A187896 nonn %O A187896 1,1 %A A187896 _Clark Kimberling_, Mar 15 2011